Nonnative Species As human have traveled around the earth, they have purposefully and accidentally brought plants and animals with them and introduced them to new continents. Natural barriers to the movement of plants and animals include large bodies of water, large deserts, and mountain ranges. World wide, introduced species are ...

Pillow Basalt FAQ Where does pillow basalt form? Pillow basalt is a volcanic igneous rock that forms when lava of basaltic compositionis erupted underwater. The rapid cooling of the lava by cold water on all sides forms the pillow-shaped bodies, which can then break open and extrude more of the hot ...

Cape ivy control Cape Ivy is the California coast's biggest and baddest weed. If the Park Service had their way, we would be circulating a mug shot of this bright green vine. It is such a pain that it is the first wildland weed that the California Department of Agriculture ...

Endangered Birds The endangered California brown pelican have been observed roosting at Seal Rocks, Alcatraz Island, Hyde Street Pier, Bird Island, and Kent Island in Bolinas Lagoon. Brown pelicans feed on small fish such as the anchovy along the Pacific coast and in Bolinas and Rodeo lagoons. Threats to this species inlclude ...